CN206409909U - A kind of radiator structure of high-powered LED lamp - Google Patents

Abstract

The utility model provides a kind of radiator structure of high-powered LED lamp, including：Shell, radiator, heat pipe, heat sink and LED chip, the LED chip is covered on heat sink lower surface, circumferentially array-like is covered in heat sink upper surface in the horizontal direction for the bottom of many " L " shape heat pipes, circumferentially array-like is covered on the inwall of radiator the upper end in the vertical direction of many " L " shape heat pipes, shell is bushed on the outer wall of radiator, the radiator bottom and it is heat sink between at a distance of 10 100mm.The radiator structure of this high-powered LED lamp is in real work, so that the heat of LED chip transmission forms " stack effect " on radiator vertical direction, accelerate air flow, compared to existing radiator, radiating efficiency improves 12%, the dust stratification that easy cleaning radiator and heat sink junction are easily formed, reduce influence of the dust stratification to heat transfer efficiency, simultaneously because radiator and it is heat sink be not direct laminating, cross-ventilation effect can be improved, so that accelerated heat is distributed.

Description

A kind of radiator structure of high-powered LED lamp

Technical field

The utility model is related to LED lamp technical field of heat dissipation, and in particular to a kind of radiator structure of high-powered LED lamp.

Background technology

LED has the advantages that green, environmentally friendly, energy-efficient, has been widely used at present.LED chip is in hair Light probably has 70%-80% energy to change into heat simultaneously, takes away heat by using radiator to maintain the heat of LED to put down Weighing apparatus.Research shows：If radiator effect is bad, when junction temperature of chip often raises 10 degree, chip lost of life half, and also it is luminous Efficiency about declines 3%, during more than 120 degree, it would be possible to can cause chip eventual failure.At present, the conventional great power LED in market Integrated optical source radiator, typically using the radiator of similar " heronsbill " structure, still, heronsbill radiator and heat sink directly connects Touch this heat transfer radiating mode and be primarily present following defect：(1) radiator and heat sink junction easily form dust stratification, it is difficult to clear It is clean, influence radiating effect；(2) due to heronsbill radiator and heat sink directly laminating, cause cross-ventilation bad, be easily caused heat Amount is excessively concentrated；(3) gear piece of heronsbill radiator is all much exposed, easy scratch workman, there is certain potential safety hazard.

Utility model content

In view of the shortcomings of the prior art, the utility model proposes a kind of radiator structure of high-powered LED lamp, this is high-power The radiator structure of LED can solve radiator and heat sink junction easily forms dust stratification and is difficult to the shortcoming of cleaning, and improve The radiating efficiency of LED.

To realize above-mentioned technical proposal, the utility model provides a kind of radiator structure of high-powered LED lamp, including：Outside Shell, radiator, heat pipe, heat sink and LED chip, the LED chip are covered on heat sink lower surface, the bottom of many " L " shape heat pipes Circumferentially array-like is covered in heat sink upper surface, the upper end in the vertical direction of many " L " shape heat pipes in the horizontal direction at end Circumferentially array-like is covered on the inwall of radiator, and shell is bushed on the outer wall of radiator, the radiator bottom and heat At a distance of 10-100mm between heavy.

In the above-mentioned technical solutions, when LED chip is started working, the heat that LED chip is produced is delivered to heat by heat sink Guan Shang, heat pipe is transferred heat on radiator again, and shell wraps radiator so that the heat of generation can not be in level Discharged on direction, but " chimney " that in the vertical direction is wrapped to form by shell and radiator produces air stream, bottom Cold air accelerates to flow up under the influence of air stream, and the air that in the vertical direction quickly flows preferably will accumulate in scattered Heat on hot device is scattered in air, and the radiating of radiator accelerates and then ensures the radiating of high-power LED chip, improves chip Service life.Simultaneously because radiator bottom and it is heat sink between keep 10-100mm distance, easy cleaning radiator and heat The dust stratification that heavy junction is easily formed, reduces influence of the dust stratification to heat transfer efficiency, simultaneously because radiator and it is heat sink be not direct Laminating, can improve cross-ventilation effect, so that accelerated heat is distributed.

It is preferred that, multiple circumferentially array distributions and the radiating fin radially progressively extended out are installed on the radiator Piece, shelling machine is into tubular, the radiating fin of the inwall held against heat sink of the shell.Such a design is in order to which radiator is obtained Heat can not discharge in the horizontal direction, can only vertically upper " chimney " production that be wrapped to form by shell and radiator Raw air stream, the cold air of bottom accelerates to flow up under the influence of air stream, the air that in the vertical direction quickly flows The heat that preferably will accumulate on radiator is scattered in air, so as to improve radiating efficiency.

It is preferred that, the lower surface of the shell is concordant with radiator lower surface, and the upper surface of the shell is equal to or higher than Radiator upper surface.Consequently, it is possible to shell by the radiating fin of radiator it is fully wrapped around including, not only increase heat spreader structures It is attractive in appearance, be also prevented from radiating fin incised wound user.

It is preferred that, the shell is aluminium, copper or polytetrafluoroethylene (PTFE) material.

A kind of beneficial effect of the radiator structure for high-powered LED lamp that the utility model is provided is：

(1) radiator structure of this high-powered LED lamp is in real work so that the heat of LED chip transmission is in radiator " chimney benefit " is formed on vertical direction, accelerates air flow, compared to existing radiator, radiating efficiency improves 12%；

(2) radiator structure of this high-powered LED lamp by shell by the radiating fin of radiator it is fully wrapped around including, not only The attractive in appearance of heat spreader structures is enhanced, radiating fin incised wound user is also prevented from；

(3) radiator bottom in the radiator structure of this high-powered LED lamp and it is heat sink between keep 10-100mm distance, The dust stratification that easy cleaning radiator and heat sink junction are easily formed, reduces influence of the dust stratification to heat transfer efficiency, simultaneously because dissipating Hot device and it is heat sink be not direct laminating, cross-ventilation effect can be improved, so that accelerated heat is distributed.

Brief description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model.

Fig. 2 is front view of the present utility model.

In figure：1st, shell；2nd, radiator；3rd, heat pipe；4th, it is heat sink；5th, LED chip.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clear, complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.The every other embodiment that this area ordinary person is obtained under the premise of creative work is not made, is belonged to Protection domain of the present utility model.

Embodiment 1：A kind of radiator structure of high-powered LED lamp.

Referring to figs. 1 to shown in Fig. 2, a kind of radiator structure of high-powered LED lamp, including：Shell 1, radiator 2, heat pipe 3, Heat sink 4 and LED chip 5, the LED chip 5 is covered on heat sink 4 lower surface, and the bottom of many " L " shape heat pipes 3 is in level side Circumferentially array-like is covered in heat sink 4 upper surface upwards, the upper end in the vertical directions of many " L " shape heat pipes 3 circumferentially battle array Column-shaped is covered on the inwall of radiator 2, and shell 1 is bushed on the outer wall of radiator 2, the bottom of radiator 2 with heat sink 4 it Between at a distance of 50mm.Multiple circumferentially array distributions and the radiating fin radially progressively extended out are installed, outside on the radiator 2 Shell 1 is designed to tubular, the radiating fin of the inwall held against heat sink 2 of the shell 1.

Operation principle of the present utility model is：When LED chip 5 is started working, the heat that LED chip 5 is produced is by heat sink 4 It is delivered on heat pipe 3, heat pipe 3 is transferred heat on radiator 2 again, shell 1 is by multiple circumferentially array distributions on radiator 2 And the radiating fin radially progressively extended out is wrapped, prevent the heat that radiator 2 is obtained from being discharged on the direction of level, and It is that " chimney " that in the vertical direction is wrapped to form by shell 1 and radiator 2 produces air stream, the cold air of bottom is in air Accelerate to flow up under the influence of stream, the heat that the air that in the vertical direction quickly flows preferably will accumulate on radiator 2 Amount is scattered in air, and the radiating of radiator 2 accelerates and then ensures the radiating of high-power LED chip 5, improves making for LED chip 5 Use the life-span.Simultaneously because keeping 50mm distance between the bottom of radiator 2 and heat sink 4, cleaning radiator 2 and heat sink 4 is facilitated The dust stratification that junction is easily formed, reduces influence of the dust stratification to heat transfer efficiency, simultaneously because radiator 2 and heat sink 4 is not direct Laminating, can improve cross-ventilation effect, so that accelerated heat is distributed.

Shown in reference picture 2, the lower surface of the shell 1 is concordant with the lower surface of radiator 2, upper surface of the shell 1 etc. In the upper surface of radiator 2.Consequently, it is possible to shell 1 by the radiating fin of radiator 2 it is fully wrapped around including, not only increase radiating The structure of device 2 it is attractive in appearance, be also prevented from radiating fin incised wound user.

In the present embodiment, the shell 1 is polytetrafluoroethylene (PTFE) material.

Embodiment 2：

The upper surface of shell 1 is higher by the upper surface 50mm of radiator 2, and shell 1 is aluminium material, other same as Example 1.

Embodiment 3：

At a distance of 20mm between the bottom of radiator 2 and heat sink 4, shell 1 is copper material.

It is described above be preferred embodiment of the present utility model, but the utility model should not be limited to the embodiment and Accompanying drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all falls Enter the scope of the utility model protection.

Claims (4)

1. a kind of radiator structure of high-powered LED lamp, it is characterised in that including：It is shell (1), radiator (2), heat pipe (3), heat sink (4) and LED chip (5), the LED chip (5) is covered on the lower surface of heat sink (4), and the bottom of many " L " shape heat pipes (3) exists Circumferentially array-like is covered in the upper surface of heat sink (4) in horizontal direction, and the upper end of many " L " shape heat pipes (3) is in vertical direction On circumferentially array-like be covered on the inwall of radiator (2), shell (1) is bushed on the outer wall of radiator (2), the radiating At a distance of 10-100mm between device (2) bottom and heat sink (4).

2. the radiator structure of high-powered LED lamp as claimed in claim 1, it is characterised in that：It is provided with the radiator (2) Multiple circumferentially array distributions and the radiating fin radially progressively extended out, shell (1) are designed to tubular, the shell (1) The radiating fin of inwall held against heat sink (2).

3. the radiator structure of high-powered LED lamp as claimed in claim 2, it is characterised in that：The lower surface of the shell (1) with Radiator (2) lower surface is concordant, and the upper surface of the shell (1) is equal to or higher than radiator (2) upper surface.

4. the radiator structure of the high-powered LED lamp as described in claim 1-3 is any, it is characterised in that：The shell (1) is Aluminium, copper or polytetrafluoroethylene (PTFE) material.